From: David Goldman (David_at_dgoldman.com)
Date: Sun May 14 2000 - 13:28:16 EDT
At 04:57 AM 5/14/2000 , sehh of H.I.C. & D.B.S. wrote:
>On Sun, 14 May 2000 01:19:30 -0700, David Goldman wrote:
>
> >>If I insert the mike jack all the way (just like I do for the speaker jack),
> >>then the external mike is TOTALLY DEAF! However, if I put the mike
> >>jack in all but the last 1/16" (or so), then the external microphone seems
> >>to work just fine. Unfortunately, I have to fiddle with the jack until I get it
> >>just right before I can start recording.
>
>If you have this 'effect', that you have to possition your jack in some way
>so that it works, then its because either the jack or the 'plug' is mono
>and the other is in stereo!
>
>Yes there are mono and stereo plugs & jacks. For example the
>old Sun Sparc microphones.
>
>So there isn't any problem with your hardware!
>
>PS:
>to see if a jack is mono or stereo then you
>need to look for one/two black strips. If it has
>two then its split in a two way channel which is
>for stereo else its mono.
I had tried a number of MONO mikes before posting. They all had the same problem.
A mono mike should work on one channel in a stereo jack (IIRC). Once I got the
Thinkpad mike adapter, my problems went away.
According to David Ross <ross_at_math.hawaii.edu>:
>This is probably still your internal microphone; the external mic needs extra
>voltage. Get the ThinkPad mic adapter from www.speechcontrol.com .
PS. I never isolated the fault or placed blame on any piece of equipment. All I
know is that I've seen this problem discussed on this list before and, at least
for me, once I started using the Thinkpad mike adapter, the problem went away.
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